APA (7th ed.) Citation

Geological Survey (U.S.). (1933). XVI International Geological Congress: Southern Appalachian Region. [s.n.].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). XVI International Geological Congress: Southern Appalachian Region. [Washington]: [s.n.], 1933.

MLA (9th ed.) Citation

Geological Survey (U.S.). XVI International Geological Congress: Southern Appalachian Region. [s.n.], 1933.

Warning: These citations may not always be 100% accurate.